#!/usr/bin/env node

const log = console.log;
const user = {
  name:'liujing',
  age:21,
  qq:'2505469033@qq.com'

};

log('name:\t%s',user.name);
log('age:\t%d',user.age);
log('user:\t%j',user);

log('name: %s',user.name);
log('age:%d', user.age);
log('user:%j',user);

log('age:\t' + user.age);

log('name:\t%s\nage:\t%d\nuser:\t%j',user.name,user.age,user);

//console.error('error message');

console.table(user);
